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On prefilters for digital FIR filter design

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2 Author(s)

A new family of digital prefilter structures is introduced, based on the Dolph-Chebyshev function. These prefilters can be combined with appropriately designed "equalizer" filters based on equiripple methods, leading to efficient FIR digital filter designs. Design examples are included, demonstrating the simplicity of the resulting designs, as compared to conventional equiripple designs.

Published in:

Circuits and Systems, IEEE Transactions on  (Volume:32 ,  Issue: 5 )